From Business Insider, an article titled : The 10 Cities Most At Risk Of Being Hit By Natural Disasters . I cannot vouch for their selection methodology, but the results are interesting to consider. Only one U.S. city is on this list and that is Los Angeles.
Update: An eeire coincidence that on March 29, LA experiences a 5.1 magnitude earthquake and more than 100 aftershocks. Damaged to small number of residential structures have been documented. See this account from the LA Times.